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How to replace spark plugs & ignition coils on a V6 Porsche Cayenne

(2003-2010)

Maintenance Interval: Every 4 years or 40k miles (60k kilometers)

Dealer Cost: ~$1200 (spark plugs + ignition coils)

Independent Mechanic Cost: ~$800 (spark plugs + ignition coils)

DIY Cost: ~$300 (spark plugs + ignition coils)

Difficulty: Easy

Repair Time: 1 hours

Recommendation: Do it yourself

Overview:

On Porsche Cayennes, it is really important to replace your spark plugs and ignition coils routinely or you can get left stranded. For an overview of the procedure, check out the video above from YouTube channel, Deutsche Auto Parts. While the video is specifically covering the Porsche Cayenne, it shares the same Volkswagen VR6 so the procedure is nearly identical. You can find the parts, tools, and detailed instructions below.

These service instructions apply to:

  • 2003-2010 Porsche Cayenne Base (V6)

Instructions

  1. Make sure your engine is cold, so you don't burn yourself; additionally, you do not want to remove or install spark plugs when the engine is hot or you can damage the threads.
     

  2. Gather tools and parts.
     

  3. Open hood and remove plastic engine cover by simply pulling up on it.
     

  4. You will now see the ignition coils. Remove the plastic strip covering the ignition coil plug wires by unclipping the ends.
     

  5. Remove the ignition coil connectors. Use a small metal pick to lift up the tab, then gently wiggle the connector off. Be careful not to break the tabs.
     

  6. Remove the ignition coils using the ignition coil puller. Inspect the ignition coils for damage. These are known to fail frequently, so we recommend replacing them every 40k miles as a preventative measure.
     

  7. Now use your magnetic spark plug socket and a long extension to remove the spark plugs. Be careful not to let any debris fall into your engine.
     

  8. Re-install the new spark plugs and torque them to 15 ft-lbs.
     

  9. Re-install everything.
     

  10. Put up your tools and clean up your work area.
     

  11. You're all done!